Repair leak compound



106. composmows.

comma R PLASTlC Cross Patented Dec. 20, 1932 UNITED STATES Reference PATENT OFFICE NORMAN SUMMERS AND ALLEN P. KABR, OF PHILADELPHIA, PENNSYLVANIA REPAIR LEAK COMPOUND No Drawing. Application filed May 28,

This invention relates to a compound for repairing leaks in boilers, radiators, and other hot water circulating systems.

The invention has for its object the provision of a composition which Wlll permanently seal the leaks in any hot water circulating system without the formation of any coatings or other matter which will tend to clog the system in any way.

It has been heretofore suggested and in fact, many compositions of this nature contain soap, but it has been found that soap will cause the water in the system to froth and will siphon the'water from the system and in time,leave the same dry. 4

It is doubtful if the soap is of any eflicacy in a mixture of this sort and, consequently, the novel compound hereinafter described does not include soap in any form.

Another object of the invention is to provide a compound for sealing leaks in hot water systems of such a nature that the compound may be introduced into the system in either dry or li uid form.

A further ob]ect of the invention is to provide a leak-sealing compound in which the ingredients are so combined as to form a water-i soluble glpe on dr 'n Kccording to the 11%fiETSn, tfie compound comprises flaxseed meal, aluminum powder, dry sodium silicate and casein in such pro-' portions as to effect the sealing of any leaks in a hot water circulating system.

It has been found out by experiment and test that a compound of approximately the following proportions gives excellent results, to-wit:

Ounces Flaxseed meal 16 Aluminum 1 Sodium silicate (dry) 2 Casein 25 seal.

1930. serial No. 456,822. /z

The formation of this seal not only depends upon the unique combination of the dry silicate of soda and casein, but is aided by the combining of the aluminum with the casein to form aluminum caseinate. This combination of proteln and aluminum gives a very effective and permanent water-insoluble seal.

The flaxseed assists in the distribution of the other desirable material and as known, aids in the stoppage of leaks. Its inherent eflicacy "will also be greatly augmented by the casein-sodium silicate.

Of course, the proportions stated herein are substantial and various changes and modifications thereof may be resorted to without departing from the invention herein set forth and hereafter claimed.

We claim r. 1. A leak repair compound for hot water circulating systems, comprising flaxseed meal, pulverized aluminum, dry sodium silicate, and casein.

2. A leak repair compound for hot water circulating systems, comprising approximately 16% oz. of flaxseed meal, 1 oz. of pulverized aluminum, 2 oz. of sodium silicate, and 2% oz. of casein.

In testimony whereof we have signed our names to this specification.

NORMAN SOMIMERS. ALLEN P.KARR.

LAGHIIIIU! 

